DataValueField but no attribute

[Michel]

Hi,

I have a problem with the attributes (DataValueField), this is my code :

treeView.DataTextField = "CheminFr";
treeView.DataFieldID = "CLA_CODE";
treeView.DataFieldParentID = "PARENT_CLA_CODE";
treeView.DataValueField = "CLA_ID";
treeView.DataValueField = "CLA_ACTIVE";
treeView.DataValueField = "profondeur";
treeView.DataValueField = "cheminEn";
treeView.DataValueField = "ChildrenAllowed";
treeView.DataValueField = "nbArticle";

//Récupère l'arbre à afficher
DataSet ds = MichelFactory.getAllHierarchy();

treeView.DataSource = ds;
treeView.DataBind();

In debug mode,
ds.Tables[0].Rows[0]["nbArticle"] = 52 but treeView.Nodes[0].Attributes.Count = 0 :-/

The tree is displayed correctly... but I can't find the attributes.

Do you have an idea?

[Michel]

I'm sorry!!

To add attributes, I must use :

e.Node.Attributes.Add(.../...) on RadTreeView_NodeDataBound

Sorry, sorry, and I can't delete this thread :-(

[Bozhidar]

Hi Michel,

The RadTreeNode attributes collection and DataValueField are two different things. DataValueField is used to bind the value of the node. To bind additional attributes, you have to do it in the OnNodeDataBound event. For instance, if you want to bind the profounder property to an attribute called Profounder, you shoud do the following:

protected void RadTreeView1_NodeDataBound(object sender, RadTreeNodeEventArgs e)
{
    e.Node.Attributes["Profoundeur"] = ((NodeDataItem)e.Node.DataItem).profondeur;
}

Regards,
Bozhidar
the Telerik team

[Michel]

Thanks Bozhidar

I use :

e.Node.Attributes["profondeur"] = ((System.Data.DataRowView)(e.Node.DataItem)).Row.ItemArray[4].ToString();

Because my treeView.DataSource is a DataSet.